873665580000 has 240 divisors, whose sum is σ = 2990402464896. Its totient is φ = 222847680000.

The previous prime is 873665579989. The next prime is 873665580001. The reversal of 873665580000 is 85566378.

873665580000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873665580001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1063455 + ... + 1696545.

Almost surely, 2^873665580000 is an apocalyptic number.

873665580000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 873665580000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1495201232448).

873665580000 is an abundant number, since it is smaller than the sum of its proper divisors (2116736884896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

873665580000 is a wasteful number, since it uses less digits than its factorization.

873665580000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633147 (or 633124 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 873665580000 in words is "eight hundred seventy-three billion, six hundred sixty-five million, five hundred eighty thousand".